I was told years ago by a teacher at a Carden School that they teach their students that English homonyms, especially those with diphthongs, can be told apart by the pitch profile of the vowel sound. ...

What base does vocabulary.com use for its hierarchy of meanings of a word? For example see http://www.vocabulary.com/dictionary/sound. Are top levels (numbered list) all homonyms?
What structure do ...

For example, a friend of mine posted a picture of a book series on Facebook and the start of his caption was "Read all 13!" I initially interpretted this as an imperative sentence ([ɹid] all 13), but ...